164625254666 has 16 divisors (see below), whose sum is σ = 254953167360. Its totient is φ = 79641897840.

The previous prime is 164625254603. The next prime is 164625254699. The reversal of 164625254666 is 666452526461.

164625254666 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66755 + ... + 577673.

It is an arithmetic number, because the mean of its divisors is an integer number (15934572960).

Almost surely, 2^164625254666 is an apocalyptic number.

164625254666 is a deficient number, since it is larger than the sum of its proper divisors (90327912694).

164625254666 is a wasteful number, since it uses less digits than its factorization.

164625254666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516149.

The product of its digits is 12441600, while the sum is 53.

The spelling of 164625254666 in words is "one hundred sixty-four billion, six hundred twenty-five million, two hundred fifty-four thousand, six hundred sixty-six".